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| 型号： | TC14433ELI |
| 元件分类： | ADC |
| 英文描述： | 1-CH 3-BIT DUAL-SLOPE ADC, SERIAL ACCESS, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 20/24页 |
| 文件大小： | 382K |
| 代理商： | TC14433ELI |
2008 Microchip Technology Inc.
DS21394D-page 5
TC14433/A
2.0
TYPICAL PERFORMANCE CURVES
Note: Unless otherwise specified, VDD = +5V, VEE = -5V, C1 = 0.1 F, (Mylar), C0 = 0.1 F, RC = 300 kΩ, R1 = 470 kΩ @ VREF = 2V,
R1 = 27 kΩ @ VREF = 200 mV, TA = +25°C.
FIGURE 2-1:
Rollover Error vs. Power
Supply Skew
FIGURE 2-2:
Sink Current at VDD = 5V.
FIGURE 2-3:
Clock Frequency vs.
Resistor (RC)
FIGURE 2-4:
Quiescent Power Supply
Current vs. Ambient Temperature.
FIGURE 2-5:
Sink Current at VDD = 5V.
FIGURE 2-6:
% Change to Clock
Frequency vs. Ambient Temperature.
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
ROLLOVER
ERROR
(IN
LSD)
AT
FULL
SCALE
(PLUSE
COUNT
LESS
MINUS
COUNT)
-3
-2
-1
0
1
-4
-3
-2
-1
Typical Rollover Error vs. Power Supply Skew
(VDD I-IVEE I) - SUPPLY VOLTAGE SKEW (V)
01
23
4
2
3
4
Note: Rollover Error is the Difference in Output
Reading for the same Analog Input Switched
from Positive to Negative.
0
1
2
3
4
5
01
2
3
4
5
-40
°C
+25
°C
+85
°C
Typical N-Channel Sink Current at VDD – VSS = 5 Volts
I D
-
SINK
CURRENT
(mA)
VDS - DRAIN TO SOURCE VOLTAGE (VDC)
1M
10k
Ω
100k
Ω
1M
Ω
100k
CLOCK FREQUENCY
16,400
±1.5%
CONVERSION RATE =
Typical Clock Frequency vs. Resistor (RC)
I CLK
-
CLOCK
FREQUENCY
(Hz)
RC - CLOCK FREQUENCY RESISTOR
Note: ±5% Typical Variation over
Supply Voltage Range
of ±4.5V to ±8V
CLOCK FREQUENCY
80
MULTIPLEX RATE =
Typical Quiescent Power Supply Current vs.Temp.
I Q
-
QUIESCENT
CURRENT
(mA)
TA - TEMPERATURE (°C)
0
1
2
3
4
-40
-20
0
20
40
60
80
100
VEE = -8V
VDD = +8V
VEE = -5V
VDD = +5V
0
-1
-2
-3
0-1
-2
-3
-4
-5
Typical P-Channel Sink Current at VDD – VSS = 5 Volts
I D
-
SINK
CURRENT
(mA)
VDS - DRAIN TO SOURCE VOLTAGE (VDC)
-40
°C
+25
°C
+85
°C
4
3
2
1
0
-1
-2
-3
-4
-40
-20
0
20
40
60
80
Normalized at 25
°C
±5V Supply
±8V Supply
I CLK
-
CLOCK
FREQUENCY
(%
CHANGE)
Typical % Change fo Clock Frequency vs. Temp.
CLOCK FREQUENCY
16,400
±1.5%
CONVERSION RATE =
CLOCK FREQUENCY
80
MULTIPLEX RATE =
TA - TEMPERATURE (°C)
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